Following up on my experience here in case it's helpful. While trying to find a pair of boots for this year I went through a ton of options - Scarpa R-Evolution GTX (KUIU’s), Asolo Fugitives, Asolo Drifter GVs, Salomon Quest 4D, Crispi Thor’s and Crispi Colorados. At one point my wife came to be with some serious questions about our running Amex bill.
I'm thrilled to have found Jordan's review because, in the end, the Colorados were far superior to all the others I tried. I liked the Scarpas from KUIU but, despite ordering my regular size 11 and an 11.5, I just couldn't get these things to fit. Like everything else from KUIU (who I love), I think if you want the Scarpa R-Evolutions you need to order a full size up to start with and then go up more from there.
As soon as the Colorados were on my feet I was sold. These boots have just the right amount of stiffness for climbing steep terrain and supporting heavier loads but "rock" very well when moving across more level terrain which gives a nice sense of forward momentum. I broke my ankle hunting in December '18 (La Sportiva :/) so Crispi's A.B.S.S. feature was a huge selling point for me. The additional support can be felt immediately, especially when compared to a boot that doesn't have a dedicated support system (I'm thinking of the Crispi Thor GTX here which I also liked but the lack of ABSS was a deal breaker for me).
First hike (relative term here in Texas) was a local preserve where I knocked out 7 miles and 1,000 vertical feet gained. While my feet did get slightly sore over the course of the day, the next morning I had zero blisters or hot spots. Really no break-in needed on this boot.
The boot was slightly heavier than some of the others I tried. The 11.5s came in at 3lbs, 10.6oz. Not bad in general or when you consider a "light" boot like the Scarpa R-Evolution weighs in at only 2.4oz less (which is a little deceptive as you'd need to go up half a size to have a similar fitting boot).
I wear a size 11 in my Brooks running shoes and the Crispi 11's were about perfect at first. However, I did notice on a steep incline that my right toe barely clipped the front of the shoe. I ended up going with the 11.5 which was slightly wider than I'd prefer but toe room was excellent and it wasn't too hard to lace them down to take out some volume. I have an average foot width so anyone with a wider foot would likely find these to be perfect.
To anyone looking in to these, I'd recommend them highly. Can't wait to get them into some real backcounty terrain this season and put them to work. Now I just need to return all these others...